| Numéro |
J. Phys. IV France
Volume 09, Numéro PR9, September 1999
3rd European Mechanics of Materials Conference on Mechanics and Multi-Physics Processes in Solids : Experiments, Modelling, Applications
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| Page(s) | Pr9-197 - Pr9-206 | |
| DOI | https://doi.org/10.1051/jp4:1999920 | |
3rd European Mechanics of Materials Conference on Mechanics and Multi-Physics Processes in Solids : Experiments, Modelling, Applications
J. Phys. IV France 09 (1999) Pr9-197-Pr9-206
DOI: 10.1051/jp4:1999920
1 Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
2 Technical University of Darmstadt, Institute of Mechanics, 64289 Darmstadt, Germany
© EDP Sciences 1999
J. Phys. IV France 09 (1999) Pr9-197-Pr9-206
DOI: 10.1051/jp4:1999920
Effects of damage on effective properties of piezoelectric composites
X.-Q. Feng1 and D. Gross21 Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
2 Technical University of Darmstadt, Institute of Mechanics, 64289 Darmstadt, Germany
Abstract
The present study aims to examine the effects of microcracking damage on the effective electroelastic moduli of piezoelectric fibrous composites. First, the ten independent material constants for a two-phase transversely isotropic, fibrous piezocomposite are given in explicit forms using Mori-Tanaka mean field method. Then, considered are the damage effects in three typical cases of damage, namely the isotropic, completely anisotropic and evolutionary damage. It is found that some effective electroelastic moduli are insensitive to the microcracking damage while some others show evident dependence on the accumulation of damage.
© EDP Sciences 1999